Disk-shoe for seeding-machines.



No. 560,759.` Patented oct. 3o, |900.

- J. MURPHY.

msx'suos Fon ssemna'nncnmzs.

(Application 1ed-mc.- 27. 1899.)

(lo ludel.)

NITED STATES PATENT OFFICE.-

JAMES MORPI'IY, OF BRANTFORD, CANADA, ASSIGNOR TO THE COCKSI'IUTT I PLOW COMPANY, LIMITED, OF SAME PLACE.

DISK-SHOE FOR SEEDING-MACHINES.

SPECIFICATION formingpart of Letters Patent No. 660,759, dated October 30, 1900. Application led December 27, 1899. Serial No. 7411,753. (No model.)

T @ZZ whom t may concern.-

Be it known that I, JAMES MORPHY, ofthe city of Brantford, in the county of Brant, in

the Province of Ontario,Canada, have invented certain new and useful Improvements in Disk-Shoes for Seeding-Machines, of which the following is a specification.

My invention relates to improvements in disk-shoes for seeding-machines; and the ob- 1 o jects of the invention are, first, to devise a form of inside scraper for what are known as the converging-disk shoes which will conform to the pressure on the outside of the disk and which Will follow any unevenness there may be in the disk at an even pressure and from which the dirt congregating may readily escape; secondly, to provide an adjustable form of scraper for the outside of the converging disks which will allow of the desired pressure zo and yet have suiicient freedom at the pivotpoints to adapt itself to any unevenness at the outside of the disks; thirdly, to provide a simple means to prevent the disks causing an undue friction on the inside Scrapers; fourthly, z 5 to so arrange the scrapers in reference to the shoes, which are arranged in zigzag fashion, that the dirt may be scraped olf from the forward shoe and thrown in front of the rear shoe and not against it; ffthly, to provide for 3o the proper oiling and construction of bearing for the disks, and, siXthly, to make the inside of the bearing both oil and dust proof, as hereinafter more particularly explained.

The invention consists in the arrangement and construction of the various parts embodying my invention and operating in the manner hereinafter more particularly explained. Figure l is a perspective view showing two disk-shoes in zigzag fashion. Fig. 2 is a sectional elevation. Fig. 2a is a cross-section on the line m y, Fig. 2, the rollers being shown in side elevation. Fig. 3 is a cross-section through the oiling-tube looking toward the grain-tube. Fig. 4 is a detail'of the outside scraper with the rod. Fig. 4a is a detail of the scraper socket-plate in which the rod is held. Fig. 5 is a detail of the hollow conebearing. Fig. 6 is a detail of the end of the hub.

sides.

In the drawings like characters of reference 5o indicate corresponding parts in each figure.

A A are the two converging disks forming the shoes.

B represents the hubs, which are securely riveted tothe disks A A around the central 4holes d a, as indicated.

the disks rotate,the said hollow cone-bearings being provided with slots c3 and the internal flange c4 with projecting lugs c5, which eX- tend into the orifices c at the bottom of the oil-duct, and thus maintain the hollow conebearings from rotating. 7o

It will of course be understood that the disks converge and are necessarilysupported on deflecting-trunnions, as indicated. Necessarily the connecting-bolt D is one bent in the center, and this bolt D extends at the end through washers d and d', .which abut the shoulders b2, formed at the inner end of the recesses at the end of the hub and are provided with a square collar 2, fitting intoacori. responding opening in the outer ends of the 8o cone-bearings.

It will be seen from the construction of the oil-duct C2 and the passage-ways in the top of the trunnions and cone-bearings that the oil is fed upon the cone-bearings, so as to always keep them thoroughly lubricated. In order to keep the oil in and the dust out, I provide the internal caps E, which iit against the shoulders bin the recesses B at the outer end of the hub and are held in 'place by the 9o circular wire spring e, itting into the annular groove b. The top of the oil-duct is provided with a suitable stopper O5.

F represents the outer Scrapers, which are formed substantially as shown and are provided at the top with an embracing socketplate f, having a socket f anda stop f2 below the socket.

F is a spring-rod provided with a bent end f3, which extends through the socket f', so as' to abut the stop f2. There are of course two,

outside Scrapers provided, one on each disk, and the rods F' extend up through sockets g in the arms G, which are pivoted on the pins g' onthe bracket G', forming part of the boot.

The bracket G is provided -with an offset g2, i

and through the ends of the arms extend the set-screws G2, by which the degree of pressure of the Scrapers upon the disks may be y disk. Consequently it will be seen that the dirt scraped off theforward shoe will be thrown in front of the rear shoe and not against it, as it would be were such scraper arranged the same as the scraper'on the rear shoe., I may state that in practice this is a very important desideratum, as it prevents the choking of the soil between thev shoes.

H H are the inside Scrapers, which are pivoted at the vbottom at h in an extension of the casting of the grain-tube C and at the top by the crank-pins h' in the notchesg3 in the plate G3. The inner Aedges of thel blades of the Scrapers, it Will be Seen, are adjacent to each other, and the outernends areheld against the insides of the disks by the spiral spring I, the ends of which are connected to the ends of the crank-pins h', such spring extending uniderneath the plate G3, which is secured to the boot C by the screws C4. It Will be noticed that the notches h2 are cut out at the bottom ends of the scraper, so as to allow of the` free egress of the dirt that might Work in behind the Scrapers.

In order to hold the insides of the disk away from pressing too hard on the inside Scrapers y or the boot, I provide the friction-rollers 3, which are suitably journaled at the rearend of the boot C' in a recess C5. The friction;

rollers are causedtorotate by their frictionfal contact with the disks and as they abuteach other necessarily rotate against each other.

It Will be seen from the constructionl have described that I have provided la bearing for the converging disks which Will be kept per- E Before the I of, of the external Scrapers each provided with a spring-holding rod and a clamping socket-arm through which such rod extends suitably secured to the rear of the boot as and for the purpose Specified.

2. The combination with the converging disks suitably journaled and the boot upon 'which such journal is supported or forms part of, `of the 'external scrapers each provided With a spring-holding rod, a bracket secured to the boot, clamping-arms pivoted on the bracket and provided 'with sockets through which the rod extends as and vfor the purpose specified. l,

3. lThe combination with the converging disks suitably journ-ale'd and the boot upon Which such journal is supported or forms part of, of the external Scrapers each provided With -'a spring-holding rod, a bracket secured to the boot, clamping-arms pivoted lon the bracket and provided with sockets through which the rod extends, and set-screws'extending through the ends of the arms and de'- signed to abut an offset in the bracket as' and for the purpose specified.

y 4. The combination with the converging disks -suitably .journaled and the boot upon which s-uch journal is supported or forms part of, of the Scrapers, the holdin g-plates secured to the sa-me and provided `With a 'socket and stop underneath the sam-e, the spring-rods having bent ends extending into the socketi pins together as and for the lpurpose specified.

6. The combination with the grain=tube casting or boot and `rear extension thereof, of the inner scrap-ers suitably journaled to the rear of the boot on the inside 'of the disks and provided at the bottom with a cutaway portion to permit of the dirt escaping as and for the purpose specified.

7'. The vcombinati-on with the igraintube casting or boot and rear extension thereof, of

the friction-rollers abutting eachother fa'n'd the disks and suitably journaled in the cast'- ing as and for the `purpose specified.

8. In a disk-shoe for seeding-machines, in combination the converging disks, the hol'- loW hubs provided with an intern-al taper, the :grain-tube and boot `and 'oil-duct leading downwardly therefrom, the trunnions extend'- ing laterally on both sid-es of the grain-tube, the passage-Ways Tin the sides 'of the oil-duct and the longitudinal passage-Ways in the trunnions, the hollow tapered bearings tting IOO lIO

een 3' shoulder and the spring-Hug flttingvwithin such groove and holding the parts together as and for the purpose specified.

JAS. MORPHY.

the conical trunnions and provided with passage-ways for the oil opposite the passageways in the trunnions, means for connecting the parts together, recesses in the ends of the hubs, the shoulder in the internal periphery of each recess, the cap abutting such shoulder, the annular groove outside the l Witnesses:

R. D. COCKSHUTT, J. CHAS. SPENCE. 

